Fountain pen



Jan. 7, 1930. F. J. KRISTOFEK FOUNTAIN PEN Filed May 9. 1925 Patented Jan. 7, 1930 UNITED STATES PATENT OFFICE FRANK J. KRIS'IOFEK, OF ST. PAUL, MINNESOTA, ASSIGNOR 'IOBROWN & BIGELOW, OF ST. PAUL, MINNESOTA, A CORPORATION OF MINNESOTA FOUNTAIN PEN Application filed May 9,

My invention relates to a fountain pen construction particularly adapted to the cap for closing the fountain pen which forms a cover for the pen point.

A feature of the invention is in providing an economical construction and to facilitate easy assembly of the parts.

it is also an object of 111* invention to provide a sleeve means adapted to be contained in the cap, which sleeve is adapted to carry the means of locking the cap onto the barrel of the fountain pen, thus permitting a thread formation on the sleeve and obviating the necessity of such threads on the barrel cap and thereby reducing the cost of manufacture.

lvly invention includes a sleeve having a non-metallic cup member, which is provided with a elsed end and an open end, into which the pen point is adapted to extend. The cup 530 member is provided with an annular shoulder edge which engages with the base shoulder formed about the pen point to permit the base shoulder to be drawn tight against the annular shoulder of the cup to close the fountain pen.

In the drawings forming part of this specification:

lEigure 1 illustrates my cap partly in cross section. v

Figure 2 illustrates a fountain pen barrel.

Figure 3 illust ates the pen assembly and ink sack removed as a unit from the barrel.

Figure 4 illustrates the sleeve removed from the pen cap.

Figure 5 illustrates the non-metallic cup removed from the sleeve.

lnthe drawings my fountain pen cap A is formed of any suitable material and preferably is made of gold or silver or other suitable metal with thin side walls 10, a closed end 11, an open end 12 and to which a pocket clip 13 can be attached.

Within the cap A I provide a sleeve 14 which is threaded on one end at 15 and within the upper end of which is carried a cup member 16 formed of non-metallic material having a closed end 14 and an annular shoulder edge 18 which is positioned toward the opening 12.

The sleeve 14 is forced into the cap A so that the same engages the side wall 10 under 1925. Serial No. 29,247.

heavy frictional contact, while the cup 16 is 1 held therein. The sleeve 14- is formed with a recess 27 by depressing the side wall of the same, and the cup 16 is provided with a similar recess 28 which fits against the depressed portion 27 in the sleeve 14. This recess 27 permits the tongue of the clip 13to be iirmly engaged between the wall of the cap, A and the recess 27 to hold the clip 13 firmly in place.

In this manner a simple, inexpensive construction-is provided for the cap A by the sleeve 1a to supply the threaded portion 15 which is adapted to connect with the threads 20 on the barrel B of the fountain pen without making it necessary to cut or form the threads 15 in the thin wall 10 of the fountain pen. It is to benoted that should the threads be formed within the cap A that they are very apt to show through and distort the barrel where they are formed in the manufacture and thus all such barrels or caps must be destroyed as defective parts, and inthis manner the overhead in manufacture is greatly increased. For this reason my sleeve 14- isof extreme importance and by providing a cup 16 of non-metallic material I provide a means of closure and a covering for the fountain pen point 21 which is of a non-metallic nature and with a 7 strong, durable thread construction 15, adapted to engage the threads 26 to hold the cap A to the barrel.

In attaching the fountain pen barrel B to the cap A the pen assembly C is inserted in the barrel B, and which consits of the pen section 22 which carries the pen point 21, having an annular base shoulder 23 about the base of the pen point, and having an ink sack 24 attached to the pen section 22 while an ink sack bearing bar 25 extends along the sack.

The pen assembly C is held by the threads 26 formed on the pen section 22 which engage with the threads 20 in the barrel B.

My cap A is used to cover the pen 21 and the threads 20 engage the threads 15 of the sleeve 14;, drawing the base shoulder 23 against the annular shoulder edge 18 of the non-metallic cup 16, thus concealing the pen 21 in the cup and closing the fountain pen so that theink will not leak out of the same. This provides a very practical, inexpensive construction lUO which is very desirable because of its simple assembly and economical manufacture.

In accordance with the patent statutes I have described the principles of operation of my fountain pen and while the drawings illustrate a particular form of construction, I desire to have it understood that this is only illustrative and that the invention can be carried out by other means and applied to uses other than those above set forth, within the scope of the following claims.

I claim:

1. A fountain pen cap comprising an outer cup like cap member, an inner open ended sleeve threaded in one end and having a longitudinally extending recess in the other end, a non-metallic cup having a longitudinal recess therein, said longitudinal recess in said open ended sleeve and said non-metallic cup being adapted to coincide and said non-metallic cup being adapted to expand said open ended sleeve within said outer cup in a manner to lock the same in the pen cap.

2. A fountain pen cap having a pen covering assembly including a tubular sleeve memher, a non-metallic cup member, said cup and sleeve members having coinciding recesses forming an opening for receiving the attaching tongue of a pocket clip to secure the same to said cap when said sleeve assembly is forced into said cap.

3. A fountain pen cap including an outer cup like member having a closed end, a sleeve having a thread on one end and open at the other end adapted to be inserted in said cup with the open end of said sleeve engaging against the closed end of said cup, a cup like non-metallic member adapted to frictionally engage within said open ended sleeve with the closed end of said non-metallic member engaging against the closed end of said cap and coinciding longitudinal recesses formed in said non-metallic cup and said sleeve.

FRANK J. KRISTOFEK. 

